Numark Diarrhoea Relief Instants 2mg Orodispersible Tablets contain Loperamide Hydrochloride which is an anti-diarrhoeal medicine which helps to stop diarrhoea by making the stools more solid and less frequent. This medicine is used for the treatment of sudden short-lived (acute) attacks of diarrhoea in adults and children of 12 years and over. It can also be used by adults of 18 years and over who have irritable bowel syndrome (IBS), which has been previously diagnosed by a doctor, to relieve short term diarrhoea associated with it.